£7.24£20.83
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Rated 4.4 in 71 reviews
(Website and brand rated 4.6 from 925 reviews)

This is a high quality, short term course of live cultures. 'One week flat' from OptiBac is gluten free and therefore may be especially suitable for those with bloating.


Vegetarian Vegetarian
No Gluten No Gluten
Suitable during Pregnancy Suitable during Pregnancy

What's it for?

A natural bacteria supplement from OptiBac to be taken for 7 consecutive days.

Who's it for?

For those seeking a high quality, short-term live cultures supplement.

Each sachet:

Provides 5 billion live cultures + 0.3g FOS fibres.

OptiBac 'One week flat'

'One week flat' is a food supplement containing natural bacteria (live cultures), in powdered sachets to be taken daily as a one-week course. This can be taken once a month, or as frequently as desired. Please scroll to the bottom of the page to read reviews from our customers who have tried this supplement.

Lactococcus lactis Rosell-1058

More about 'One week flat'

Lactobacillus acidophilus Rosell-52: acidophilus is a natural resident of the intestinal microflora; this strain of acidophilus from OptiBac has been shown to survive gastric acidity and biliary salts, and to reach the intestines without damage.

Bifidobacterium bifidum Rosell-71: In-vitro tests suggest that this strain flourishes well with Fructooligosaccharides.

Lactobacillus casei Rosell-215 is of an extensively studied species naturally residing in the intestinal flora; this strain from OptiBac has been researched in its ability to resist gastric acidity and bile salts in order to reach your small and large intestines alive.

Lactococcus lactis Rosell-1058 is extracted from the kefir culture, and has been scientifically proven to reach the gut alive.

Fructooligosaccharide fibres (FOS) predominantly settle in the large intestine where they may act as a food source to stimulate the growth of your body's natural bacteria.

This 7 day course is ideal for those looking for a short term, high quality natural bacteria supplement.

Background information

Unlike similar foods and supplements containing friendly bacteria, 'One week flat' is free from added sugars and does not contain gluten, and may therefore be suitable for those with bloating. Abdominal or stomach bloating is thought to be associated with food intolerances, constipation, over-eating, PMS or intestinal gas; leaving the abdomen feeling uncomfortable, full and tight. If you have poor digestion, waste materials and the gases they produce can remain in the gut for long periods of time, often at high temperatures and pressures. This causes bloating and stretching of the gut walls beyond their comfortable limits. An imbalance of bacteria in the gut may result in poor digestive health, bloating, production of smelly and uncomfortable gases, and sluggish bowels. This imbalance is known as dysbiosis.

Healthcare professionals can see Scientific Research on live cultures and bloating.

Please note: As of May 2014, this product has a new name ('One week flat') in the EU. The ingredients remain the same.

Directions

As a natural food supplement 'One week flat' can be given to adults and children from 4 years old & up, with the following recommendations: Take one sachet daily with breakfast for a 7 day course, or as professionally directed.

We highly recommend you take 'One week flat' for 7 consecutive days. Most customers take this course once a month, but it can taken as often as desired. For more information see our FAQ: How often should I take OptiBac 'One week flat'?

For best results:

  1. Pour an inch of water into a tall glass, leaving plenty of room for swirling.
  2. Shake the sachet well before gently sprinkling in the powder.
  3. Leave powder to dissolve naturally.
  4. Vigorously swirl the water around in the glass.
  5. Drink, wait, and enjoy the benefits!

Storage

Like the rest of the OptiBac range, this does not require refrigeration.

Store away from direct sunlight.

Safety

Live cultures are not recommended for those with serious medical conditions eg. those who are severely immunosuppressed, have pancreatitis, are in the ICU, have melaena, have a central venous catheter, infants with short bowel syndrome, or to patients with open wounds following major surgery; unless under a doctor's care. Furthermore, pregnant or breastfeeding women should consult their doctor before taking Saccharomyces boulardii, 'For travelling abroad', or natural plant extracts as in 'For daily immunity'.

Nutritional Information

Stabiliser: Maltodextrin; Fructooligosaccharides (FOS); live cultures: (Lactococcus lactis Rosell-1058, Lactobacillus casei Rosell-215, Lactobacillus acidophilus Rosell-52 and Bifidobacterium bifidum Rosell-71).

Each sachet guarantees 5 billion micro-organisms + 0.3g FOS fibres.

Frequently Asked Questions

Healthcare professionals can follow the links below to read FAQs relevant to 'One week flat'.

You can find more of our frequently asked questions on our FAQ page.

 

Delivery Options

Currency 

As we are an UK-based company, the product prices on our website will always be shown in pounds sterling (GBP £). As currency exchange rates fluctuate on a daily basis, the conversion to local currency will be made by your bank on the day of purchase. Check out today's currency conversion rates using a search engine and an appropriate currency conversion tool, though do bear in mind that the rates displayed may be subject to change before your bank processes your transaction.

Same day dispatch

For most delivery options, if you place your order by 3pm on a working day (i.e. Monday to Friday, excluding bank holidays), we'll dispatch it on the same day. Any orders after this time will be dispatched on the next working day.

If you choose our International Express Courier option, the cut-off time is 11am.

United Kingdom

Delivery within the United Kingdom and Northern Ireland has a fixed price, regardless of the size and weight of your order. Delivery times are estimates and not guaranteed unless otherwise stated.

Method Price
Standard Shipping
Please allow 4-7 days for delivery.

£1.75
First Class Postage
Please allow 1-3 days for delivery.

£2.50
Next Day Courier
Guaranteed next-working-day delivery to most of the UK if you order by 3pm Monday to Friday (requires signature).

£6.00

International

We ship to virtually all countries around the world, with the notable exception of Hong Kong.

Most international delivery prices are dependent on the size of your order and where it's being sent. You'll be shown the final price of shipping in the checkout, before payment, once we have your address and order details.

The main exception to this is delivery to EU countries using our International Express Courier service. This has a fixed delivery cost for each country, regardless of the size of your order.

Please note that not all services are available to all destinations. See our International Delivery Coverage table for the availability of each service for your country.

Method Price
International Standard
Please allow 3-7 days for delivery within Europe and 5-12 days to all other destinations. (Does not include tracking).
From
£9.54
International Signed
International postage with delivery confirmation (requires signature).
Please allow 3-7 days for delivery within Europe and 5-12 days to all other destinations.
From
£10.44
International Tracked & Signed
International delivery with full tracking and delivery confirmation (requires signature).
Please allow 3-7 days for delivery within Europe and 5-12 days to all other destinations.
From
£10.44
International Express Courier
Fast international courier service with full tracking and delivery confirmation (requires signature). Delivers to USA and most other countries in 2-7 days. See our International Delivery Coverage for the delivery time to your country.
From
£11.06

Remember: the price of international delivery depends on the size of the order and the country to which it's being sent. The final price of shipping will be shown in the checkout before you pay.

NB: Long distance shipping and short-term exposure to high temperatures will not compromise the viability of our products. Customers living in very hot countries should store the products out of direct sunlight and refrigerate if the option is available.

  • The first sachet I took I didn't feel a lot of difference. My stomach always looked huge. I suffered with IBS and bloating. Stopped taking it.
    Then I found I felt worse.
    I then ordered 4packs. This then worked. Bloating has gone. Stomach a lot smaller. I stopped looking like a pregant woman at 72.
    Now having once a month.

    Chelmsford
  • I bought this to try & get rid of my bloating around the time of the month. It was ok and did work quite well. The main difference I noticed was how my constant indigestion caused by a gall stone has eased off. I've bought another pack to see if gets even better.

    Buckinghamshire
  • First of all I am sorry because English is my second language.
    I have tried all types of probiotics here in California, but none of them do me any good. But a problem with bloating, constipation. ... Read more

    Milpitas, California
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